• Type II Supernovae as Probes of Cosmology
    with D. Poznanski, E. Baron, S. Blondin, J. S. Bloom, C. B. D'Andrea, M. D. Valle, L. Dessart, R. S. Ellis, A. Gal-Yam, A. Goobar, M. Hamuy, M. Hicken, D. N. Kasen, K. L. Krisciunas, D. C. Leonard, W. Li, M. Livio, Marion H., T. Matheson, J. D. Neill, K. Nomoto, P. E. Nugent, R. Quimby, M. Sako, R. C. Thomas, M. Turatto, S. D. V. Dyk, and W. M. Wood-Vasey
    - Constraining the cosmological parameters and understanding Dark Energy have tremendous implications for the nature of the Universe and its physical laws. - The pervasive limit of systematic uncertainties reached by cosmography based on Cepheids and Type Ia supernovae warrants a search for complementary approaches. - Type II SNe have been shown to offer such a path. Their distances can be well constrained by luminosity-based or geometric methods. Competing, complementary, and concerted efforts …Read more
  • Des14x3taz: A type I superluminous supernova showing a luminous, rapidly cooling initial pre-peak Bump
    with M. Smith, C. B. D'Andrea, F. J. Castander, R. Casas, S. Prajs, A. Papadopoulos, R. C. Nichol, N. V. Karpenka, Bernard S. R., P. Brown, R. Cartier, J. Cooke, C. Curtin, T. M. Davis, R. J. da FinleyFoley, A. Gal-Yam, S. da GoldsteinGonzález-Gaitán, R. R. Gupta, C. da HowellInserra, R. Kessler, C. Lidman, J. Marriner, P. Nugent, T. A. Pritchard, M. Sako, S. Smartt, R. C. Smith, H. Spinka, R. C. Thomas, R. C. Wolf, A. Zenteno, T. M. C. Abbott, A. Benoit-Lévy, E. Bertin, D. Brooks, E. Buckley-Geer, A. C. Rosell, M. C. Kind, J. Carretero, M. Crocce, C. E. Cunha, L. N. Da Costa, S. Desai, H. T. Diehl, P. Doel, J. Estrada, A. E. Evrard, B. Flaugher, P. Fosalba, J. Frieman, D. W. Gerdes, D. Gruen, R. A. Gruendl, James D. J., K. Kuehn, N. Kuropatkin, O. Lahav, T. S. Li, J. L. Marshall, P. Martini, C. J. Miller, Miquel R., B. Nord, R. Ogando, A. A. Plazas, K. Reil, A. K. Romer, and A. Roodman
    © 2016. The American Astronomical Society. All rights reserved.We present DES14X3taz, a new hydrogen-poor superluminous supernova discovered by the Dark Energy Survey supernova program, with additional photometric data provided by the Survey Using DECam for Superluminous Supernovae. Spectra obtained using Optical System for Imaging and low-Intermediate-Resolution Integrated Spectroscopy on the Gran Telescopio CANARIAS show DES14X3taz is an SLSN-I at z = 0.608. Multi-color photometry reveals a do…Read more